Mixing device



Oct. 26 1926.

F. Y. M KENNEY MIXING DEVICE Filed Nov. '1, 1924 2 Sheets-Shoot 1 Oct. 26 1926.

. 1,604,845 M KENNEY MIXING DEVICE Filed Nov. 1, 1924 2 Sheets-Shut 2 Patented Oct. 26, 1926.

UNITED STATES PATENT orFic'E.

"Y. IVICKENNEY, or CHATTANOOGA, TENNESSEE, 'ns'sreivon 170 THE KELLY MANUFACTURING COMPANY, or CI-IATTANOOGA, TENNESSEE, A CORPORATION or TENNESSEE.

MIXING DEVICE.

Application filed November My said invention relates to a mixing device and it is an object of thesametopro vide a device of this character which shall be adapted to mix washing powder-0r other powder whether soluble or insoluble with water or other liquid in any desired proportions.

A further object of the invention is to provide a device of this character which shall not be liable to clog whether by pre mature wetting of the powder or for other reasons.

Another object of the invention is to pro vide a device of this character in which the action may be varied according to the nature of the material or objects to be operated on.

Figure 1 is a vertical central section of my device 1 Figure 2, a horizontal section on line 22 of Fig. 1,

Figure 3 a similar section online 3-3of Fig. 1, and

Figure-41 a section on line l4 of Figure 1.

In the drawings reference character in dicates the outer casing of my device here shown as having an integral bottom and a removable top 11. A shaft 12 is mounted centrally of the device in bearings at the topand bottom, the latter part being pierced for this purpose to receive a "flanged sleeve 13 having internal screw-threads by which a nut 14 is adjustably supported. The nut 14 is hollow and has a roller'bearing 15 on which the shaft 12 is supported.

A hub 16 is secured to the shaft 12 and carries a sleeve 17 closing the ioint betw'eenthe hub and the sleeve 13. The hub 16 supports a propeller in the form of a horizontal wheel having spokes or vanes IS'carried by an annular rim 19 and an upper horizontal flange 20 on the rim. The rim is supported on the hub by means of spokes 21 each of which is pitched like the vanes of a fan.

Above the propeller a baffle plate 22 is supported on the casing 10 by means of an annular flange 23 riveted or otherwise "at tached to the casing, the plate being in the form of a cone or, strictly speaking, a "frustum of a cone. A number of holes 2 1 are arranged in a circle on the baflie plate, this arrangement of course to be subject to variation as desired. Abovethe baffle plate a 1, 1924. Serial No. 747,346.

similar conical plate 25 is attached to the casing, this plate beingthe lower member of a "storagebin or compartment 25' for the reception of powder. A r'eversely located conical niember 26 is secured to the shaft adjacent to the lower end of the plate 25. The parts 23, 25 and 26 are in effect flanges whichmight be formed integral with the Above the plate 251116 81131 1; 12 hasa hub 29secured'thereto from which a plurality of arms 30 radiate. These arms serve as j agitating means to keep the powder stirred up in the compartment so that it will feed readily out of the same at the bottom. Thetop of'the casing carries a compartment 31within which there is a hub 32 on the shaft 12. WVeights 33 are pivotally mounted on the hub 32and are normally dr'awn inward by springs 35. \Vhen'the speed of "the machine reaches a predetermined limit the weights outunder the action of'centrifugal force and are adapted to engage the sides ofthe compartments l andact as brakes to retard the shaft 12 and prevent excessive speed of operation. A graduated knob 34s is located at thetop of the shaft 12,the purpose being to provide an indicator by observation of which the attendant can determine whether or not the device is running and at what speed. The top 11 may be so constructed as to close the casing but preferably it will consist merely of the compartment 31, a pair of oppositely extending arms 36 and flanges 37 depending from the arms, said flanges fitting closely against the walls of the casing.

The casing is provided with an opening at one point with which a pipe 38 communicates said pipe having a valve 39 by operation of which water can. be admitted into the casing when desired. When this is done the propeller will be operatedand will turn the shaft 20 to cause rotation of the coiie'26 and the stirrers 30 as well as the centrifugal brake shoes 33. The powder in the upper chamber is stirred and gradually passes out between the cones 25 and 26 assisted by the hobs 26, the springs 27 and 28 scraping the lower ends of the respective parts to prevent choking of the feed. The powder falls into the lower cone 22 and passes thence to the bottom of the casing where it is mixed with the agitated water after which the mixture emerges through the outlet 40. At this time a small quantity of water can splash up through the openings 24 to wash down the inside of the plate 22 and prevent powder from adhering thereto. If hot water is used the vanes 21 draw the steam down out of the casing by creating a downward air current toward the outlet 40. If this were not done the steam might wet the powder in the upper part of the casing to such an extent as to interrupt the feed.

Should the hub 3% stand still at any time the attendant will be notified by the stationary condition of knob 3- that the action of the device has been interrupted for some reason and if necessary will operate it manually by turning the hub. Should there be a tendency to work too fast the centrifugal brake shoes will fly out and slow down the movement of the shaft 12.

If it is desired to change the ratio of powder and liquid the nut 1a is turned by means of the stem 41 and thereby the shaft 12 is raised or lowered which either increases or decreases the space between the cones 25 and 26 to cause more or less powder to pass through for each revolution of the shaft. Preferably a scale is provided onthe outside of the casing at 42 and the arm 4-1 is provided with an indicator 4-3 coacting with the scale to indicate the position of the arm relative to the casing and thereby the position of the cone 26 relative to the cone 25.

It will be obvious to those skilled in the art that various changes may be made in my device without departing from the spirit of the invention and that it may be put to other uses; therefore I do not limit myself to what is shown in the drawings and described in the specification but only as indi cated in the appended claims.

Having thus fully described my said invention, what I claim as new and desire to secure by Letters Patent is:

1. A mixing device for powder and liquid comprising a casing having a storage space, means to provide a flow of liquid below the powder chamber means for feeding powder from the storage space to the liquid, including agitating means at the bottom of the chamber and agitating means at a distance from said bottom, and means operated by the flowing liquid to vary the feed of powder in accordance with the rate of flow, substantially as set forth.

2. A device for mixing powder and a fluid comprising a casing, a powder compartment in the casing, means for creating a flow of fluid through the casing below the powder chamber, means for feeding the powder into the fluid, and means for varying said feed independently of such flow, substantially as set forth.

3. A device for mixing powder and liquid comprising a casing, a storage compartment for powder in the upper portion of the casing, an inlet whereby water under pressure may be admitted to the casino, means operated by the current of water en-- tering the casing for feeding the powder into the water, and means for withdrawing vapor from the casing, substantially as set forth.

4. A device for mixing powder and liq uid comprising a casing a storage compait ment for powder in the upper POI'JlOli of thecasing, an inlet whereby water under pressure may be admitted to the casing, a propeller operated by the water entering the casing, means operated by the propeller for variably feeding powder from the compartment to the water in accordance with the speed of the current, and means operated by said propeller for withdrawing vapor from the casing, substantially as set forth.

5. A device for mixing powder and liquid comprising a casing, a shaft therein, a storage space for powder in an elevated part of the casing, a propeller in the lower part of the casing, means for admitting a current of liquid into the casing said current operating said propeller, and means oper ated by said propeller for feeding said powder from the storage space into said current, substantially as set forth.

6. A device for mixing powder and liquid comprising a cylindrical casing an upright shaft therein, a storage space about the shaft at the upper end of the casing, a propeller on the shaft adjacent its lower end, means whereby a current of liquid is admitted into the casing for operating the propeller, and means on said shaft for feeding powder into said current, substantially as set forth.

7. A device for mixing powder and liquid comprising a cylindrical casing, an upright shaft therein, a storage space about the shaft atthe upper end of the casing, a horizontal wheel on the shaft adjacent its lower end, means whereby a current of liquid is ad mitted into the casing for operating the wheel, means on said shaft for feeding powder into said current, and a conical plate secured to the casing and extending inwardly therefrom to prevent lodgment of the powder on the outer parts of the wheel, substantially as set forth.

8. A device for mixing powder and liquid comprising a cylindrical casing, an upright shaft therein, a storage space about the shaft at the upper end of the casing, a propeller on the shaft adjacent its lower end, meanswhereby a current of liquid is admitted into the casing for operating the pro aeller, means on said shaft for feeding powc er into said current, and a conical plate secured to the casing said plate extending inwardly therefrom to prevent access of the powder to the outer part of the propeller and having apertures near its periphery to admit liquid for cleaning the plate, substantially as set forth.

9. A device for mixing powder and liquid comprising a cylindrical casing having a storage space, an upright shaft in the easing, an inverted conical member fitting with in the casing and open at its lower end, an upright conical member on the shaft partially closing the opening in the first-named conical member said members forming a bottom for the storage space, and means for admitting liquid to the casing below said conical members whereby powder may flow from the storage space into the liquid, substantially as set forth.

10. A device for mixing powder and liquid comprising a cylindrical casing having a storage space, an upright shaft in the casing, an inverted conical member fitting with in the casing and open at its lower end, an upright conical member on the shaft partially closing the opening in the first-named conical member said members forming a bottom for the storage space, and means for admitting liquid to the casing below said last-named conical member having hobs on its upper surface, substantially as set forth.

11. A device for mixing powder and liquid comprising a cylindrical casing having a storage space, an upright shaftin the easing, an inverted conical member fitting within the casing at the lower end of said storage space, said member beingopen at its lower end, an upright conical member on the shaft partially closing the opening in the firstnamed conical member, means operating in the space between said members to cause the powder to flow freely, and meansfor admit-ting liquid to the casing below said conical members whereby powder may flow from the storage space into the liquid, substan tially as set forth.

12. A device for mixing powderand liquid comprising a cylindrical casing having a storage compartment, an upright shaft therein, an inverted conical member fitting within the casing and open at its lower end, an upright conical member on the shaft partially closing the opening in the first-named conical member and coacting therewith to form a bottom for the storage space, resilient scrapers attached to the respective conical members and operating in the space between them, and means for admitting liquid to the asing below said conical members whereby powder may flow from the storage space into the liquid, substantially as set forth.

lower end, an upright conical member on the shaft; partially closing the opening in the first-named conical member and cooperating therewith to form a bottom for the storage space, means for admitting liquid to the casing below said conical members whereby powder may flow from the storage space into the liquid, and means for adjusting the shaft in the direction of its length to vary the feed of powder, substantially as set forth. 7 V

14. A device for mixing powder and liquid comprising a cylindrical casing, an upright shaft therein, an inverted conical member fitting within the casing and open at its lower end, an upright conical member on the shaft partially closing the opening in the firstnamed conical member and cooperating therewith to form a bottom for the storage space, and means for adjusting the shaft in the direction ofitslength to vary the feed of powder, substantially as set forth.

15. A device for mixing powder and liquid comprising a cylindrical casing, an upright shaft therein, an inverted conical member fitting within the casing and open at its lower end, an upright conical member on the shaft partially closing the opening in the first-named conical member, means for admitting liquid to the casing below said conical members whereby powder may flow from thestorage space into the liquid, means for adjusting the shaft in the direction of its length to vary the feed of powder, and an. indicator outside the casing moving with the shaft for indicating its position, substantially as set forth.

16. A device for mixing powder and liquid comprising a cylindrical casing, a rotary upri'ghtshaft therein, an inverted conical member fitting within the casing and open at i-tslower end, an upright conical member on the shaft partially closing the opening in the first-named conical member, saidmembers forming the bottom of a storage cham' her and means for admitting liquid to the casing below said conical members whereby powder may flow from the storage space into the liquid, substantially as set forth.

17'. A device for mixing powder and liquid comprising a cylindrical casing,ia rotary upright shaft therein, an inverted conical member fitting within the casing and open at its lower end, an upright conical member on the shaft partially closing the opening in the first-named conical member, said members forming the bottom of a storage space, means for admitting liquid to the casing below said conical members whereby powder" may flow from the storage space into the liquid, and indicating means on the upper end of the shaft outside the casing rotating with the shaft, substantially as set forth.

18. A device for mixing powder and liquid comprising a cylindrical casing havinga powder compartment, a rotary upright shaft therein, an inverted conical member fitting within the casing and open at its lower end, an upright conical member on the shaft partiallyclosing the opening in the first-named conical member, a water wheel at the lower end of the shaft, means for admitting water to operate the wheel and so feed the powder out of said compartlnent, substantially as set forth.

19. A device for mixing powder and liquid con'iprising a'cylindrical casing, a

rotary upright shaft therein, an inverted conical member, said members forming the bottom of a storage space fitting within the casing and open at its lower end, an upright conical member on the shaft partially'closing the opening in the first-named conical member, means for admitting liquid to the casing below said conical members whereby powder may flow from the storage space into the liquid, and means to limit the speed of the shaft, substantially as set forth.

20. A device for mixing powder and liquid comprising a" cylindrical casing hav ing a powder compartment, a rotary upright shaft therein, an inverted conical member fitting within the casing and open at its lower end, an upright conical member on the shaft partially closing the opening in the first-named conical member, a water wheel at the lower end of the shaft, means for admitting water to operate the water wheel and feed the powder from said compartment, and means on the shaft to withdraw vapor from the casing, substantially as set forth.

21. A device for mixing powder and liquid comprising a cylindrical casing having a powder compartment, a rotary upright shaft therein, an inverted conical member fitting within the casing open atits lower end, an upright conical member on the shaft partially closing the opening in the firstnamed conical member, a water wheel at the lower end of the shaft, means for admitting water to operate the water wheel and feed the powder from said compartments,

and means for adjusting the shaft longitudinally to vary the feed of powder, substantially as set forth.

22. A device for mixing powder and liquid comprising a cylindrical casing having a compartment for powder, a rotary upright shaft therein, an inverted conical member fitting within the casing open at its lower end, an upright conical member on the shaft partially closing the opening in the first-named conical member, a water wheel at the lower end of the shaft, means for admitting water to operate the wheel and feed the powder from said compartments, means for adjusting the shaft longitudinally to vary the feed of powder, a scale on the outside of the casing, and indicating means movable with the shaft adjusting means and coacting with said scale to inclicate the vertical position of the shaft, substantially asset forth.

23. In a device of the character described, a casing,- a rotary shaft therein, an annular flange n the shaft, a flange on the casing coacting therewith to provide a bottom for a storage space for powder, and stirring means acting between the adjacent edges of said flanges, substantially as set forth.

24-. In a device of the character described, a casing, a rotary shaft therein, an obconical plate on the casing, a cone fixed to the shaftproviding with said plate the bottom of a storage space for powder, 7 and stirring means acting between the contiguous edges.

of the parts of said bottom, substantially set forth.

25. In a device of the character described, a casing, a rotary shaft therein, an annular flange on the shaft, :1, flange on the casing coacting therewith to provide a bottom for a storage space for a fluent solid, and stirring means carried by one flange acting on the other adjacent to its free edge, substantially as set forth.

26. In a device of the character described, a casing, a rotary shaft therein, an annular flange on the shaft, a flange on the casing coacting therewith to provide a bottom for a storage space for a fluent solid, and stirring means fixed for relative movement with one of said flanges in position to scrape the powder from the other, substantially as set forth,

In witness whereof, I have hereunto set my hand and seal at Chattanooga, Tennessee, this 26th day. of March, A. D. nineteen hundred and twenty-four.

FRED Y. MCKENNEY. [1,. s.] 

